Slack notification to use committer email rather than CircleCI username


#1

Currently the slack notification has the username, which is imported from bitbucket. In the organization, we standardize on using company email to identify authors and that is different from bitbucket usernames (hard to standardize on those). Would be great to change the slack (& other post-build hooks) to use the committer’s email to identify the builder, as opposed to their username.


#2